Preparation of improved alkylpolyglycoside surfactant mixtures
CA 2120145 A1 · Owner: Aleksejczyk, Robert A. · Inventors: Counts, Michael W.; Bator, Patricia E.; Wulff, Harald P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved alkylpolyglycoside surfactant composition and method, of preparing same, by selecting an average chain length of the alkyl moiety of the composition and mixing two or more of at least binary components having an average alkyl chain lengths such that when mixed, the amounts thereof are effective to provide the predetermined, selected average alkyl moiety of the surfactant composition. The improved alkylpolyglycoside composition is used in a variety of end-use applications, including hard surface cleaners, laundry detergents, and personal care products such as, shampoos, soaps, facial cleansers foam baths, toothpaste, mouthwashes, antiperspirants and the like.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed September 18, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 18, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 18, 2014.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.